Roda’i, Nur Indah Putri Ayu Pratama, Agung Setyawan, and Willy Nofriza Putra. “Improving Cognitive Learning Outcomes in Mathematical Problem Solving Through the Problem-Based Learning (PBL) Model for Grade 3 Students at SDN Baddurih”. Journal of Action Research in Education 3, no. 2 (October 22, 2025): 59–72. Accessed December 31, 2025. https://pub.nuris.ac.id/journal/jare/article/view/142.